Swivel traction-bar with frame and cross-supports.



v R. W. PETERSON. SWIVEL TRAGTION BAR WITH FRAME AND (moss SUPPORTS. APPLICATION IILED JULY 10, 1912.

2 SHEETS-SHEET 1.

I l & Wi l-11255125 ll'lverfi'li I XW R. W. PETERSON. QWIVEL TRACTION BAR WITH FRAME AND GROSS $UPPORT8.

APPLICATION FILED JULY 10. 1912.

3 SHEETS-SHEET 2.

MINI.

"i' lllllllllllllllli? wearer,

error-ear, rm 1 Specification of Letters Eatent.

one a. rn'rnason, or saunanosa, ce -rroanra.

AND chess-sorrows.

Patented Aug. regrets.

To all whom it may concern:

Be it known that l, RAFORD W. P-E'I'ER- SON, a citizen of the United States, -resid-' or cultivator through the soil."

My invention is illustrated in the accom- "panying drawin s, in which frame and cross-supplorts 1n e running gear of a.

Figure 1, is a side elevation of a motor drawn vehicle with swlvel tractmn bar,

place. Fig. 2,

is a plan-view of t motor drawn vehicle, showlng-the swivel traction bar, with frame and cross-siipports 1g. 3 is a broken cross-section showing the swivelv in place: also angle adjustment.

heads of the traction bars; also the movable anchorage of' the cross-supports.

1 is e chassis; 2 and 3 are the yokes carrying the driving pinions 4 and 5' is the traction frame; 7 and 8 are the k1ng bolts supporting the yokes 2 and 3, and the. traction frame 6; 9 is a group of spacmg collars; 10 and 11 are angle braces suporting the upright bar 12; 13 is a clevis or attaching the load to the traction frame; 14 and 15 are the swivel headed traction bars, and 16 is the swivel case; 17 and 18 arethe movable anchorages of the bar ends for the cross-supports; 19 and 20 are the cross-supports; 21'and 22'are" the yoke lugs to which are secured the upper ends of the cross-supports; 23 is a means for the angle adjustment of the traction frame 6, (in this particular easel have shown a chain); 24 and 25 are the stud bolts securing the outer ends of the traction bars tothe yokes 2 and 3; 26 and 27 are\the looped ends of the traction .bars 14 and 15; 2S and 29 are threaded bushings for the swivel case 16, securing the swivel heads 30 of the'traction bars 14 and 15;.31 is a split collar; 32 and 33 are jam nuts on the threaded bushingS 28 and-29. 1

The operation of my invention is as follows: The object to be drawn is attached to Appticafion filed Euly 10, 1812. Serial No. 91.

a the tract-ion frame 6 by a clevis, or any suit- The elevation of this attachable means. ment can be varied by means of the spac- 1ng collars 9, on the upright bars 12. This bar is reinforced and strengthened by the introduction of the angle braces 10 and 11.

The traction frame 6 is made laterally ad- ]ustable by a swiveled mounting, such as kin bolts 7 and 8. This lateral adjustment ena les me to shift the objectto be drawn to the right or left of the center of the vehicle and is maintained by the chain 23, or any suitable means. I secure the forward end of said chain to the vehicle by any desirable method (shown inthe drawing as attached to the yoke 3). In this instance the yokes 2 and 3 carry the bearings for the mam drlving pinions 4 and 5 and are attached to the vehicle by swiveled mountings on the gear casing. At the lower end and.

projecting inwardly from yokes 2 and 3 are the extensions by means of which the traction bars 14 and 15 are secured with stud bolts 24 and 25. The traction bars 14 and 15 are provided with hooks or the like as indicated at 26 and 27 so as to provide for the attachmentofdevices which it is desirableto draw from a lower level, such, for instance, as stone 'hoats, fodder sleds, logs, etc. The swivel heads of the traction bars '14 and 15 are inclosed by a case 16. Said case is threaded inside of each end to receive threaded bushin s 28 and 29. The split col-' lar 31 is introuced between the enlarged head 30 of the traction bar and the threaded bushing 28. This prevents the traction loar from being withdrawn from the sleeve. The threadgd bushings 28 and 29 also provide .a mea s for adjustment of said bars. Projecting beyond theenlarged swivel-head 30 is an extension of bars 14 and 15 of such length as to cause them to meet in the center of the case 16. This prevents bars 14 and 15 from being forced inwardly. The jam nuts 32 and 33 are the locking device preventing the loosening of the threaded bushings 28 and 29 and are of such size as to form a channel or groove to carry the movable anchors 18, to which are attached the cross-supports19 and 20. It will be readily seen that a load strain carried by the clevis 13, on the traction frame 6, would be communicated to the swiveled case 16 through the traction bar 14. Under this condition the cross -supports 20 would carry that strain. If the load strain were transferred to the front of the vehicle, and carriedat the hook end of the traction bar.15, the load strain would be communicated to the swiveled case 16 through the traction bar 15. Under this condition the cross-supportsltl would carry the load. The traction bars 14 and 15 being swiveled or rotatably mounted in the sWiveled case 16, provide a' means fora perfect compensation for all torque strains caused by the unevenness of the ground over Which the vehlcle being driven. At the same time it remams rigid as a tractor. The cross-supports 19 and 20 are rotatably mounted on the outside and on each end of the case 16, crossing each other. The crossing of these supports brings them into tensile strain as either end of the traction bars 14 and 15 are in use. They are also free from torque strain caused by the'unevenness of the road over which the vehicle is driven.

I do not limit myself to the particular construction herein described but desire to.

avail myself of any changes which may come within the scope of my invention.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

1. In combination with a traction frame, parallel bars, eyes at one end of said bars king bolts for securing said eyes, an upright bar for connecting the other end of said parallel bars, and spacingcollars on said upright bar, substantially as described and claimed.

2. In a traction frame and in combination,

parallel bars, eyes in one end of said parallel bars, pins for mounting said eyes, an upright bar connecting the other end of said parallel bars, angle braces supporting the upright bar, and spacing collars on said bar, substantially as described.

3. In a traction frame and in combination,

means for securing the lateral adjustment of said frame, parallel bars, e'yesin one end of said parallel bars, pins for mounting said bars, an upright bar for connecting the other end of said parallel bars, angle braces supporting the upright bar, and spacing collars on said bar, substantially as described and claimed. Y .4. In combination with a traction frame,

a yoke, a bearing in said yoke, eyes in the end. of the yoke, stud bolts for securing said eyes, an extensionon the lower side of said yoke, a traction bar and a hook or loop on one end of said traction bar, substantially as described."

5. In combination with a traction frame, yokes, pinions, eyes, extensions, traction bars, hooks or loops at one end of said bars, swivel-heads on the other end of said bars,

split bushings back of the swivel-heads, a .case for said swivel-heads, and threaded bushings with jam nuts for saidcase, substantially as described.

6. In combination with a traction frame,

yokes, pinions, eyes, extensions, traction bars, hooks or loops at one end of said bars, swivel-heads on the other end of'said bars, split bushings back ofthe swivelheads, a case for said swivel-heads of the traction bars With threaded bushings and jam nuts, collars for the swiveled case, cross-supports, eyes in each end of the cross supports, means for securing the eyes tolthe collars at one end and means for securing the eyes to the yoke at the other end, substantially as described and claimed.

WETH GRANT MURRAY.

PETERSON. 

